23042815 has 8 divisors (see below), whose sum is σ = 28030608. Its totient is φ = 18181440.

The previous prime is 23042783. The next prime is 23042819. The reversal of 23042815 is 51824032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23042815 - 2⁵ = 23042783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23042815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23042819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31201 + ... + 31930.

It is an arithmetic number, because the mean of its divisors is an integer number (3503826).

Almost surely, 2^23042815 is an apocalyptic number.

23042815 is a deficient number, since it is larger than the sum of its proper divisors (4987793).

23042815 is an equidigital number, since it uses as much as digits as its factorization.

23042815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63209.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 23042815 is about 4800.2932202106. The cubic root of 23042815 is about 284.5630526079.

Adding to 23042815 its reverse (51824032), we get a palindrome (74866847).

The spelling of 23042815 in words is "twenty-three million, forty-two thousand, eight hundred fifteen".